Page 1 of 25

NIOSH RESPONSES TO

SC&A FINDINGS ON 

ORAUT-RPRT-0077

Response Paper

National Institute for Occupational 

Safety and Health

January 30, 2018

Mike Mahathy 

Oak Ridge Associated Universities Team

Reviewed by Timothy Taulbee 

Division of Compensation Analysis and Support

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 2 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

ORAUT RESPONSES TO SC&A FINDINGS ON ORAUT-RPRT-0077 

The Oak Ridge Associated Universities Team (ORAUT, the Team) issued Evaluation of Health 

Physics Area and Health Physics Department Codes to Identify Neptunium Workers at the 

Savannah River Site to address identification of neptunium workers (ORAUT 2016). SC&A 

reviewed this document and issued its findings and observations in SCA-TR-2017-SEC006 

(SC&A 2017). To respond to SC&A’s concerns, the Team analyzed two datasets taken from 

NOCTS: 

1. The first dataset (the Intake Set) is comprised of the 86 records from the intake database 

identified by SC&A as those records for which they could not find SRS HP Area (HPA) and 

or HP Department (HPD) code values. The Intake Set contains claimants with DOE-reported 

positive bioassay results for either Np-237 or Pu-238. 

2. The second dataset (the CATI set) is comprised of random records selected from NOCTS 

claims containing “235-F” in the CATI (i.e., claimants who mentioned Building 235-F in 

their work history). Only findings and observations for periods from 1973 through 1995 are 

addressed in this response (the period before 1973 is covered by an SEC class; 10 C.F.R. 835 

went into effect on January 1, 1996). 

Although SC&A states that HPRED is the official record for external dose supplied for SRS 

claimants, data are also supplied from HPAREH and PRORAD. In addition, data from quarterly 

and cycle external dosimetry reports are provided by SRS and are available in the SRDB. 

Claimant monitoring data reported by SRS may be supplemented by these reports. 

The following are SC&A’s findings and observations along with the Team’s responses: 

SC&A Observation 1: Section 8.0 of NIOSH 2016a would benefit from explicit instructions or 

descriptions, or both, on how NIOSH plans to implement the proposed approach of using HPA 

and HPD codes to assign Np-237 co-worker intakes. Additionally, an example dose 

reconstruction using actual claimant records would help illustrate how the methodology would 

function in practice. 

ORAUT Response: Dose reconstructors (DRs) currently record HP Area (HPA) by 

cycle/quarter as part of assigning external dose. DRs use a template similar to the one shown 

Figure O1-1.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 3 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Figure O1-1 

As part of assigning internal dose, DRs will use the HPA data entered in the external dose 

template (Figure O1-1) to determine when Np-237 co-worker doses should be applied to the 

claimant using a template similar to Table O1-1. For each employment year the DR will enter 

any qualifying HPA code in the table. For any calendar quarter (groups in cycles of three) with 

no HPA the DR should look for an HPA for the claimant in the SRS quarterly dosimetry 

summary for the quarter. With the example in Table O1-1 the HPA code 2F was observed in 

1974-1975 while the code 2H was observed in 1977. No qualifying HPA code was observed in 

1976. The DR will record any of the HPA codes identified in the conclusion of this response. 

Completion of the HPA for the template represented by Table O1-1 may be programmed in the 

SRS dose reconstruction tool to automate completion of the form using the HPA data entered in 

for external dose in Figure O1-1. A claimant will need only one qualifying HPA code in a year; 

neptunium co-worker dose will be assigned for the entire year for those workers without a 

neptunium bioassay or neptunium in vivo result.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 4 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table O1-1. Assign Np Co-worker Dose. 

Year HP Area

1974 2F

1975 2F

1976 None

1977 2H

For the example data used in Table O1-1 above, the DR would assign neptunium co-worker dose 

for 1974, 1975, and 1977. 

SC&A Observation 2: The issue of what constitutes appropriate worker coverage for applying 

co-worker intakes of neptunium is central to NIOSH 2016a. Such judgments are not necessarily 

technical in nature but are common in the practical implementation of any unmonitored dose 

assignment. Thus, the issue of sufficient worker coverage in the context of using HPA and HPD 

codes for dose assignment should be carefully considered by the SRS Work Group. 

ORAUT Response: Observation noted. 

SC&A Finding 1: Of the 173 documented intakes of Np-237 and Pu-238 identified among the 

claimant population, 43% had associated dosimetry records that did not identify an HPD code 

and 25% that did not identify an HPA code.

ORAUT Response: The Team analyzed each of the records from the Intake Set for which 

SC&A could not locate HPA code values, and where the date of the bioassay indicating the 

exposure was on or after January 1, 1973. SC&A reported HPA values not found for 31 persons; 

some were for the same person on different dates, resulting in 40 worker-year combinations. 

Using site dosimetry reports found in the SRDB, the Team found HPA values for each of the 40 

worker-year combinations. For each, an HPA code was found that was reported for the calendar 

quarter that included the bioassay date showing a positive Np-237 or Pu-238 analytical result.

Codes identified in this effort expanded the list of HPA codes previously identified for workers 

with potential for routine exposures to neptunium. 

SC&A Observation 3: When HPA and HPD codes were provided in the available external 

dosimetry records associated with confirmed intakes, the codes showed reasonable agreement 

with the analyses in Sections 5-1 and 5-2 of NIOSH 2016a. SC&A agrees that, in general, these 

codes represent the cohort of workers most likely to have been exposed to neptunium. However, 

the SC&A analysis identified HPD and HPA codes associated with construction trades that are 

likely important for the assignment of co-worker doses despite not being seen as frequently as 

the HPA and HPD codes typically associated with operations personnel.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 5 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

ORAUT Response: HPA and HPD codes for construction workers are addressed in ORAUT 

responses to SC&A Findings 1 and 4 - 8.

SC&A Observation 4: For the period from 1959 through March 1963, badges were exchanged 

on a biweekly frequency. Approximately 80% of the cases examined during this period contained 

examples in which multiple HPA codes were identified for the same badging cycle. This indicates 

that changes in work area were being tracked by the dosimetry branch and that information is 

available in the claimant monitoring records supplied by DOE.

ORAUT Response: This issue will be considered as part a technical basis document revision.

SC&A Observation 5: Beginning in April 1963 and extending through December 1972, 

available dosimetry records are reported on a quarterly basis, although dosimeters were 

exchanged on either a biweekly or monthly basis. Therefore, work location can only be assessed 

(at a minimum) on a quarterly basis for this period.

ORAUT Response: Biweekly and monthly dosimetry reports are available in the SRDB. This 

issue will be considered as part of a technical basis document revision.

SC&A Finding 2: During the period from April 1963 to December 1972, SC&A found no 

evidence that multiple HPA codes were being assigned during a given badging cycle, which 

would allow for identifying worker movements among different areas. Unlike the previous 

period, it does not appear that the dosimetry department was using the HPA codes to track all 

worker movements during a given badging cycle.

ORAUT Response: Biweekly and monthly dosimetry reports are available in the SRDB. This 

issue will be considered as part of a technical basis document revision.

SC&A Observation 6: SC&A identified two cases in which no quarterly exposure reports were 

available from April 1963 to December 1972; however, annual exposure summaries indicate 

that positive doses were accrued during this timeframe. Through a process known as “hotlinking,” NIOSH has identified selected quarterly reports for these two individuals in the years 

1967 to 1970. Therefore, the dosimetry records may not be missing; however, they are currently 

unavailable in the DOE-supplied records.

ORAUT Response: Quarterly dosimetry reports are available in the SRDB. This issue will be 

considered as part of a technical basis document revision.

SC&A Finding 3: Several reviewed claims had incomplete quarterly dosimetry records (i.e., a 

summary report was not supplied for each relevant quarter). For many of those cases, it appears 

that quarterly reports that reflected no positively accrued dose were omitted by DOE. In other 

cases, however, missing quarterly reports are representative of positive exposure periods, as 

evidenced by comparison with annual totals.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 6 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

ORAUT Response: Quarterly dosimetry reports are available in the SRDB. This issue will be 

considered as part of a technical basis document revision. 

SC&A Finding 4: External dosimetry cycle data extracted from HPRED for the years 1973–

1981 do not contain an area designation (HPA code) or indications of the department (HPD 

code). Some claims reviewed contained limited individual cycle reports that can be used to 

supplement the HPRED data. However, 97% of the reviewed claims had at least some dosimetry 

cycles during which no work area could be determined. 

ORAUT Response: The Team analyzed each of the records from the Intake Set for which 

SC&A could not locate either the HPA or HPD. HPA values were reported as not found for 31 

workers; some for multiple years, resulting in 40 worker-years combinations. The Team found 

HPA values for each of the 40 worker-year combinations. Table F4-1 shows the results.

Table F4-1. 

Intake Set 

Number Year HP AREA

HP 

DEPT Source

1 1975 5A 911 DuPont 1975a

3 1973 2H 500 DuPont 1977a

7 1973 2F 205 DuPont 1977a

8 1979 2H 209 DOE Response

32 1977 2H 500 DuPont 1977a

32 1978 2H 500 DuPont 1978

32 1979 2H 500 DuPont 1979a

32 1979 2H 500 DuPont 1979b

32 1980 2H 500 DuPont 1980a

38 1975 2F 200 DuPont 1975b

48 1973 2H 203 DuPont 1977a

49 1975 2F 500 DuPont 1975b

49 1977 2F 500 DuPont 1977a

78 1975 2H 500 DuPont 1975b

89 1973 2H 209 DuPont 1977a

89 1975 2H 203 DuPont 1975a

90 1973 2H 500 DuPont 1977a

93 1974 2F 501 DuPont 1974

96 1975 1C 200 DuPont 1975b

99 1975 2H 203 DuPont 1975b

100 1975 2H 203 DuPont 1975c
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 7 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Intake Set 

Number Year HP AREA

HP 

DEPT Source

102 1974 2H 500 DuPont 1974

102 1975 2H 500 DuPont 1975a

104 1975 2H 203 DuPont 1975b

105 1977 2F 501 DuPont 1977b

113 1973 2H 500 DuPont 1973b

113 1974 2H 500 DuPont 1974

113 1976 2H 500 DuPont 1976

114 1976 2H 500 DuPont 1976

115 1980 7A 40 DuPont 1980b

116 1980 2H 209 DuPont 1980a

117 1980 2F 501 DuPont 1980a

120 1981 2F 601 DuPont 1981a

143 1988 5A 969 DuPont 1988

145 1976 2H 602 DuPont 1976

157 1975 2H 203 DuPont 1975a

164 1981 2F 501 DuPont 1981b

185 1983 2F 501 DuPont 1983a

188 1981 2H 203 DuPont 1981c

202 1981 7A 40 DuPont 1981d

Table F4-2 shows the HPA codes identified in the review of the 40 worker-year combinations 

(DuPont Unknown); Table F4-3HPD codes identified (DuPont 1977c). 

Table F4-2. 

HPA code Location

1C 100-C 

2F 200-F 

2H 200-H 

4H 232-234-H 

5A 773-A 

7A CS
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 8 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Although the HPA code 1C was listed with one of the worker-year combinations, further 

investigation of that intake showed that the individual was a reactor worker who had entered a 

canyon without respiratory protection. The worker was exposed only to plutonium, not 

neptunium. Therefore, the single instance of 1C is not considered an identifier for neptunium 

work. Nonetheless, an HPA code was found for the worker for the period covering the intake. 

The Team identified two instances of the HPA code 7A. Although 7A was not listed in ORAUT 

2016, Section 8, the code was used to designate Central Shops, which is an HPA code for 

identifying construction trade workers.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 9 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table F4-3. 

HPD code Department or Group

040 Construction

200 Separations: F Canyons

203 Separations: H Canyons

205 235-F: 238PuO2 Fuel Form Facility (PuFF)

209 H B-Line

500 Works Technical: HP

501 Works Technical: Laboratories

601 Works Engineering: Electrical & Instrumentation (E&I)

911 Technical: Separations Chemistry

918 Technical: Mechanical Services (LOSD)

The Team analyzed 25 records from the CATI Set in which claimants had employment for some 

period between 1973 and 1981, and for which each claimant indicated work at some point at 

235-F. A CATI did not always mention the specific years the claimant worked in 235-F; none of 

the claimants indicated they worked only at 235-F. For these workers, the Team identified HPA 

and HPD codes for each year for which the claimant had verified SRS employment. Table F4-4 

presents a summary of the findings. HPA codes and HPD codes (in parenthesis) are shown for 

each year. The designation NA indicates the claimant did not have verified employment during 

that year. The Team checked each calendar quarter for each worker. Multiple HPA and HPD 

codes were identified for some claimants across quarters. Each set of HPA and HPD codes are 

provided in the table. Bolded code values designate areas with facilities where routine exposures 

to neptunium were plausible.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 10 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table F4-4. 

CATI Set 

Number 1973 1974 1975 1976 1977 1978 1979 1980 1981

1 7E (703) 7E (703)

7E (703)

7F (703)

5G (703)

7F (373) 7F (373) 7F (373) 7F (373) 7F (373) 7F (373)

2 NA 7A (040) 7A (040) NA NA NA NA 7A (040)

7A (040)

2H (040)

4 7A (040) 7A (040) 2F (040) 2F (040) 4H (040) 4H (040) 4H (040) 4H (040) 4H (040)

6 1K (500) 1K (500) 1K (500) 1K (500) 1K (500) 1K (500) 1K (500) 

1P (500) 1P (500) 1P (500)

1L (500)

7 6A (604)

5A (604) 7M (604) 7M (604) 2A (604)

3A (604) 3A (604) 3A (604)

9A (604) 9A (604) 9A (604) 9A (604)

11 2H (800) 2H (800) 2H (800)

2H (800)

2F (800)

2H (800)

2F (800)

1K (800) 1K (800) 1K (800) 1K (800)

14 NA 4D (700)

5A (906)

5A (906) 5A (906) 5A (906) 5A (906) 5A (906) 5A (906) 5A (906)

19 NA1 NA NA NA NA 7A (040) 7A (040) 7A (040) 7A (040)

21 NA NA NA 7A (040) 7A (040) 7A (040) 7A (040)

7A (040)

2H (040)

2H (040)

28 2F (500)

2F (ND)

3A (700)

2F (200)

2F (200)

2H (800)

2H (800)

7I (800) 7I (800) 7I (800) NA NA NA

31 NA NA 7A (040)

7A (040)

5A (040)

5A (040) NA NA NA 2F (040)

37 2F (800) 2F (800) 2F (800) 2F (800) 2F (800) 2F (800) 2F (800) 2F (800) 2F (800)

40 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500)

50 2H (205) 2H (209) 2H (209) 2H (209) 2H (209)

2F (205)

2H (209)

2F (205)

2H (209)

2H (209)

2F (201)

2H (200)

2H (203)

51 3M

(505) 3M (505) 3M (505) 3M (505) 3M (505)

3M (505)

3M (205)

3M (205) 3M (205) 3M (205)

53 7K (601) 7K (601) 7K (601) 7K (601) 7K (601) 7K (601)

1C (601) 

1C (601)

9A (604) 9A (604) 9A (604)

77 NA NA NA NA NA 7C (040) 7C (040) 7C (040) 7C (040)
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 11 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

CATI Set 

Number 1973 1974 1975 1976 1977 1978 1979 1980 1981

78 NA NA NA 5G (703)

5G (703)

2F (200)

2H (203)

2F (205) 2F (205) 2F (205)

2F (205)

5A (918)

83 5G (703)

5G (703)

2F (801)

2F (801)

2F (801)

4D (801)

2F (602)

2F (602) 2F (602) 2F (602) 7F (602) 7F (602)

84 2F (202)

2F (202)

2F (200)

2F (200)

2F (601)

2F (601) 2G (601)

2F (601)

2F (601) 2F (601) 2F (601) 2F (601)

87 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 2F (500) 1K (500) 1K (500)

99 3M

(505) 3M (505) 3M (505) 3M (505) 3M (505) 3M (505) 3M (505) 3M (505) 3M (505)

101 NA NA NA NA NA NA no data 

found

2F (205)

2F (201)

2F (201)

106 NA NA NA 1K (702) 5G (703) 4D (602) 4D (602) 4D (602) 4D (602)

107 NA NA NA NA NA NA NA NA 3A (700)

2H (700)

1

NA = Not Applicable (i.e., not employed).

In summary, the team identified HPA codes for: (1) all claimants in the Intake Set identified as

having known exposures; and (2) all claimants in the CATI set those identified as having worked 

in Building 235-F. 

SC&A Finding 5: From 1973 to 1981, the primary external dosimetry record format is from 

HPRED. SC&A observed that some dosimetry cycles appeared to be missing for this period. 

Based on a review of the 78 claimant monitoring records with employment during this period, it 

is apparent that dosimetry cycles without a positive external dose recorded are not reported by 

HPRED. Only 14% of the reviewed claims had dosimetry cycle reports for each relevant 

monitoring cycle. For these claims, every dosimetry entry for these workers contained a positive 

result.

ORAUT Response: DOE supplies external dose reports for SRS claimants from HPRED, 

HPAREH, PRORAD, and quarterly and cycle external dosimetry reports. Using five rows 

selected from Table F4-4 above, quarterly dosimetry summaries and dosimetry cycle summaries, 

the Team searched for HPA codes for each cycle and determined if the cycle values matched the 

HPA values by quarter. Table F5-1 provides the results of the evaluation. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 12 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table F5-1. 

CATI Set 

Number Year Q1 Q2 Q3 Q4 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12

1 1975 7E 7E 7F 5G NR1 NR 7E 7E 7E 7E 7E 7E 7E 7F 7F 5G 

28 1974 2F 3A 3A 2F 2F 2F 2F 2F 2F 3A 3A 3A 3A 3A 2F 2F 

53 1979 1C 1C 9A 9A NR NR 1C 1C 1C 1C 1C 1C 9A 9A 9A 9A 

78 1977 5G 5G 2F 2H NR NR NR NR NR NR NR 5G 2F 2F 2F 2H 

83 1976 4D 2F 2F 2F NR NR 4D 4D 2F 2F 2F 2F 2F 2F 2F 2F 

1

NR = Not Recorded.

For each of the five rows, each HPA value listed in cycles 1 through 12 was also listed in one of 

the four quarters. Since quarter summary HPA values generally match cycle HPA, the Team 

intends to use the quarter HPA value for any quarter where all three cycles are null, or in the 

absence of cycle data. Only one qualifying HPA value in any one cycle in a year is needed to 

qualify as a neptunium worker. Neptunium doses will be assigned on an annual basis. Workers 

with a qualifying HPA in just one of four calendar quarters will be assigned neptunium 

co-worker doses for that calendar year. With number 78 from Table F5-1, the quarterly 

summaries for the first and second quarter show an HPA code though there is no recorded dose 

for cycles in those quarters. That same worker was assigned HPA code of 5G in the last quarter 

of the preceding year, 1976. In this case, since a qualifying HPA code for neptunium work was 

assigned to the worker, the worker would be assigned neptunium dose even without external 

dose. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 13 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

SC&A Finding 6: For the period from January 1973 to December 1981, SC&A found no 

evidence that multiple HPA codes were being assigned during a given badging cycle that would 

allow for identifying worker movement among different work areas. Unlike the previous period, 

it does not appear the dosimetry department was using the HPA codes to track all worker 

movements during a given badging cycle. 

ORAUT Response: An examination of results provided in Tables F4-1, F4-4, and F5-1 show 

that HPA codes were considered over a cycle and quarter. Most DuPont workers worked in 

routinely-assigned areas doing routine tasks. At times some workers, including engineers and 

reactor workers, would need to visit areas temporarily not routinely assigned (e.g., Row 19 in 

Table F4-1). In that case, a reactor worker had entered a canyon without respiratory protection. 

The worker was exposed only to plutonium, not neptunium. Workers were monitored by Health 

Physics when such incidents occurred. 

Neptunium doses will be assigned on an annual basis even for those workers with a single HPA 

code associated to the neptunium production areas within the year. With the exception of 

construction workers, a worker from an area not included in the list of HPA codes associated 

with neptunium production, and with a casual entry to an area known to have processed 

neptunium, would not be assigned neptunium co-worker dose; instead, dose would be assigned 

based on the worker’s reported bioassay and in vivo results. 

Furthermore, the intent of ORAUT 2017 is to define all construction workers in HP Department 

040 (i.e., those working through Central Shops and trade workers) as neptunium workers. 

Corresponding HPA codes for the period are: 1A, 3F, 5F, 5H, 6H, 7A, 7J, 7K, 7N and 7Q, 7R, 

7T, 8A, 8B, 8C, 8H, 8I, 8M, 8P, 8S, 8T, 8K and 8L (DuPont Unknown).

SC&A Observation 7: Beginning in January 1982 and ending in December 1988, all listed 

HPRED dose entries contain an associated area (HPA) code. No HPD codes were identified in 

the HPRED dosimetry records.

ORAUT Response: Although they may have not been propagated through HPRED, worker 

HPA and HPD codes are found in monthly and quarterly dosimetry reports during this period. 

HPD code values were identified for all sixteen worker-date combinations for time period in the 

Intake Set. Results are given on Table O7-1 below. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 14 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table O7-1. 

Intake Set 

Number Date HP AREA

HP 

DEPT Source

32 2/18/1982 2H 500 DuPont 1982a

32 8/4/1982 2H 500 DuPont 1982b

48 10/31/1983 2H 203 DuPont 1984a

76 9/23/1983 2H 960 DuPont 1983b

121 1/8/1982 2H 500 DuPont 1982a

124 6/7/1984 2F 501 DuPont 1984a

128 11/19/1985 2F 200 DuPont 1986

142 1/19/1982 2F 501 DuPont 1982a

142 4/26/1982 2F 501 DuPont 1982c

142 9/1/1982 2F 501 DuPont 1982b

142 6/20/1988 2F 571 DuPont 1988a

143 8/9/1988 5A 969 DuPont 1988b

148 2/16/1988 2F 500 DuPont 1988c

160 10/21/1988 7A 40 DuPont 1989

185 1/12/1983 2F 501 DuPont 1983a

SC&A Finding 7: For 1982 to 1988, the primary external dosimetry record format is from 

HPRED. SC&A observed that some dosimetry cycles appeared to be missing during the period. 

Based on a review of the 77 claimant monitoring records with employment during this period, it 

appears that dosimetry cycles without a positive external dose recorded are not reported by 

HPRED. Only 5% of the reviewed claims had dosimetry cycle reports for each relevant 

monitoring period, and every dosimetry entry for these workers contained a positive result.

ORAUT Response: Although the results may not have been entered into HPRED, during this 

time period site dosimetry reports list the roll, employee number, HP Area (HPA), Date Badged, 

HP Department (HPD), and employee name even where there were no associated positive results 

for each of these worker-date combinations.

From the Intake Set, 16 worker-date combinations were found to have dates between January 1, 

1982 and December 31, 1988. An HPA code was identified for each using the site dosimetry 

reports, as given in Table O7-1. 

SC&A Finding 8: For the period from January 1982 to December 1988, SC&A found no 

evidence that multiple HPA codes were being assigned during a given badging cycle, which 

would allow for identifying worker movement among different work areas. It is apparent that the 

dosimetry department was not using the HPA codes to track worker movements during a given 

badging cycle. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 15 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

ORAUT Response: The Team analyzed 25 records from the CATI Set in which claimants had 

employment of at least three years during the period between 1972 and 1989, and for which each 

claimant indicated work at some point at 235-F. A CATI did not always mention specific years 

the claimant worked in 235-F; none of the claimants indicated they worked only at 235-F. For

these workers, the Team identified HPA and HPD codes for each year for which the claimant 

had verified SRS employment. Table F8-1 presents a summary of the findings. HPA codes and 

HPD codes (in parenthesis) are shown for each year. The designation NA indicates claimant did 

not have verified employment during that year. The Team checked each calendar quarter for 

each worker. Multiple HPA and HPD codes were identified for some claimants across quarters. 

Each set of HPA and HPD codes are provided in the table. Bolded code values designate areas 

with facilities where routine exposures to neptunium were plausible. 

Table F8-1. 

CATI 

Set 

Number

1982 1983 1984 1985 1986 1987 1988

7 9A (604) 9A (604) 9A (604) 9A (604) 9A (604) 9A (604) 9A (604)

11 1K (800)

1P (180)

1P (180)

7I (602)

7I (162)

1C (162)

7I (162)

7I (164)

1C (164) 1C (164) 1C (164) 1C (164)

14

5A (906)

5A (950)

5A (961) 5A (961) 5A (961) 5A (961) 5A (958) 5A (958)

21

7A (040)

1L (040)

1L (040)

4H (400) 4H (400) 4H (400) 6H (400) 6H (400) 6H (400)

28 4D (602) 4D (602) 4D (602)

4D (162)

4D (162)

4D (166) 4D (166) 4D (166)

4D (606)

4D (606)

4D (764)

31 2F (040) 2F (040)

2F (040)

3F (040)

5F (040)

2F (040)

5F (040)

3F (040)

2F (040)

3M (040)

3M (040)

7R (040)

7R (040)

33 NA 1P (104) 7W (057) 7W (057) 7W (057)

6W (057) 6W (057) 6W (057)

35 7G (601) 7G (601)

7G (601)

7K (601)

7Q (603)

7Q (606) 7Q (606) 7Q (606) 7Q (606)

40 2F (500)

2F (500)

2F (520)

2F (520)

2F (500) 2F (500) 2F (522)

2F (522)

2F (554)

2F (522)

49 NA NA 7A (040) 7A (040) 6F (040) 6H (040) 6H (040)
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 16 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

CATI 

Set 

Number

1982 1983 1984 1985 1986 1987 1988

50

2H (203)

2H (209)

2H (209)

2H (203)

2H (281)

2H (261)

2H (281)

2H (281) 2H (204) 2H (204) 2H (209)

51 3M (505) 3M (505)

3M (505)

3M (300)

3M (225) 6F (255) 6F (255) 6F (255)

53 9A (604)

2F (210)

2F (261) 2F (280) 2F (280) 2F (280) 2F (280) 2F (280)

61 NA NA NA NA 6W (057) 2F (057) 2F (057)

74 NA NA NA 2F (057) 2F (057) 2F (057)

2F (057)

IL (057)

77

7A (040)

7R (040)

7R (040) 7R (040) 7R (040)

7R (040)

7C (040)

7R (040) 1L (508)

78

5A (518)

5A (955)

5D (955)

5D (955)

5D (601)

2H (604)

2H (420)

2H (604)

2H (604)

2H (700)

2H (700) 2H (700)

83 5B (506)

1C (100) 5B (506) 7G (602) 7G (602) 7G (602) 7G (602) 7G (602)

87 1K (500) 1K (500) 1K (500) 1K (500) 1K (500) 1K (500) 1K (500)

C01 (500)

90 2H (603) 2H (603) 2H (603) 2H (603) 2H (603) 2H (603) NA

99 3M (505) 3M (505)

3M (505)

4D (800)

5G (704)

5G (704)

6A (800)

6A (800, 

900) 6A (900) 6A (900)

101 2F (201) 2F (201)

2F (201)

3A (606) 3A (606) 3A (606) 3A (606) 3A (606)

104 NA1 NA NA

3A (166)

3A (500)

3A (585)

2F (585)

2F (520)

2F (520)

2H (520)

4F (500)

4F (585)

4F (500)

4F (525)

4F (585)

106 4D (602) 4D (602)

7N (602)

7N (602)

7N (606)

7N (606) 7N (606) NA NA

107

2H (700)

1C (105) 1C (105) 1C (105) 1C (105)

1K (161) 1K (161) 1K (161)

1C (870) 1K (161)

1

NA – not applicable – not employed.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 17 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

The majority of workers did not move between areas within a badging period. For construction 

workers in HP Department 040 who may have worked in multiple areas within a given badge 

period, an assumption is made to treat them as neptunium workers. Other workers who may 

have had a casual entry into a neptunium production area and not found to have an HPA code 

associated with neptunium production would not be assigned neptunium co-worker dose, but 

instead, would be assigned dose based on the worker’s reported bioassay.
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 18 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

SC&A Observation 8: Dosimetry record keeping appears to go through a transition in 1989. 

Dosimetry cycles generally were not reported in HPRED until April of that year, and HPA codes 

are not included until July. In addition, zero dose cycles were reported and multiple HPA codes 

can be observed for the same dosimetry cycle.

ORAUT Response: From the response to Finding 1, the Team was able to find HPA codes for 

dosimeter assignments SC&A could not locate. In the case of Figure 12 in SC&A 2017, two 

dosimeter assignments were made for the worker in cycle #7 (quarter 3). The second HPA of 

F06 designated Navy Fuels. Radiation exposures from that facility were tracked separately from 

other SRS work so a new dosimeter was assigned during the cycle. In the case of multiple HPA 

codes in a cycle, all will be captured per the example instructions given in response to

Observation 1. 

SC&A Observation 9: For the 1990–2000 period, SC&A observed that dosimetry dose cycles 

with no positive exposure were included in the HPRED printouts. SC&A also saw evidence that 

multiple HPA codes were assigned to the same dosimetry cycle. SC&A’s examination of 55 

reviewed claims during this period indicates that about 93% of the reviewed case files had 

complete dosimetry records. The four remaining claims were closely examined, and SC&A 

believes there are plausible explanations for what appear to be gaps in the dosimetry monitoring 

(i.e., the EE did not require monitoring). 

ORAUT Response: Observation noted. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 19 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

SUMMARY

The Team was able to find HPA codes for those unmatched in the Intake Set by SC&A using 

data supplied for the claimant and using SRS dosimetry reports obtained from SRS. The Team 

was also able to find HPA codes for all randomly selected claims from the NOCTS Set from 

1973 through 1995. 

The Team was also able to find HPD codes for all randomly-selected claims from the NOCTS 

Set from 1973 through the first quarter 1989. Although the majority of HPD values identified in 

the Intake Set were those cited in NIOSH 2017 Section 8 [205, 500, 503, 209, 300, 601], both 

SC&A and the Team identified additional HPD codes from that set. The Team also identified 

additional codes from the NOCTS Set. The HPA code 040 (Construction Department) was 

identified in both sets. The Intake Set is a closer representation of actual workers exposed to 

Np-237 than those the NOCTS Set; however, data are not available to narrow that set beyond the 

use of HPA codes for areas known to routinely process neptunium. HPD codes are not readily 

available for SRS claimants for work period of mid-1989 forward. 

In the next revision to the technical basis documents for SRS, language will be added to address 

Observation 5, Observation 6, Finding 2, and Finding 3 to state that where DOE has not provided 

the biweekly and monthly badge reports, these may be found in SRDB. These exposure 

documents contain HPA codes and are linked to the claimant by name during the SRDB 

document review process.

The Team will use the HPA codes given in Table S-1 below to identify claimants with the 

potential for routine exposure to neptunium, and for which neptunium co-worker doses will be 

applied. The Team will not use HPD codes to determine claims to assign neptunium co-worker 

dose. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 20 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Table S-1. Applicable HPA Codes by Time Period. 

HPA Code Comment Time Period

2F 200-F Area 1973-1989 

1A 200-F Area 1973-1980 

5F 235-F Construction Gate 1973-1989 

2H 200-H Area 1973-1989 

4H 200-H Tritium Area1 1973-1983 

5H 200-H South Construction Gate 1973-1989 

6H 200-H North Construction Gate 1973-1989 

3M 300-M Area 1973-1989 

5A 773-A 1973-1989 

1A 773-A Construction Gate 1980-1989 

7A Central Shops South Gate 1973-1989 

7R Central Shops North Gate 1973-1989 

5G 705-G T&T 1973-1989 

7G 717-A Maintenance 1973-1989 

7J Iron worker 1973-1989 

7K 722-A E&I 1973-1989 

7N 725-A Maintenance 1973-1989 

7Q 722-4A E&I 1973-1989 

7T Diversco 1980-1989 

7C TC? 1973-1989 

8A Machinist 1980-1989 

8B Boilermaker 1980-1989 

8C Carpenter 1980-1989 

8D Heavy Equipment Operator 1980-1989 

8I Insulator 1980-1989 

8K Concrete worker 1980-1989 

8L Laborer 1980-1989 

8M Millwright 1980-1989 

8P Painter 1980-1989 

8S Sheet metal 1980-1989 

8T Transportation 1980-1989 

1

HPA 4H is generally associated with tritium facilities workers, but 

replacement workers were rotated to 235-F from the tritium area when 

external exposures of neptunium workers approached the 

administrative limit (ORAU 2013). 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 21 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

Dose reconstructors will use a process similar to the following steps to identify claimants to 

assign neptunium co-worker dose: 

1. When working on external dose reconstruction, the DR will input the HPA value for each 

dosimeter cycle/quarter, as reported by DOE. In the 1970s, SRS generally reported dose by 

quarter showing in the last cycle of a quarter. 

2. The DR will retrieve and input the HPA code for any missing cycle/quarter. 

3. The DR will complete the external dose reconstruction. 

4. Moving to internal dose reconstruction, the DR will use the neptunium dose tool (Table 

O1-1). The DR will review the HPA codes entered by cycle by year entered in the external 

dose tool. Using the list of HPA codes given in Table S-1, the DR will review the captured 

HPA codes by year. Only one HPA code from Table S-1 is needed for a particular year.

5. The DR will input a qualifying HPA code in the neptunium dose tool for the year and move 

to the next year. The DR will leave the HPA field blank for any year for which no qualifying 

HPA code was captured in the external dose tool for that year.

6. The DR will use actual neptunium bioassay and neptunium in vivo results when available to 

reconstruct neptunium dose.

7. For periods where a claimant was not monitored for neptunium, the DR will assign 

neptunium dose by year for all years with a value entered in the HPA field in the neptunium 

dose field. 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 22 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

REFERENCES

DuPont (E. I. du Pont de Nemours and Company), 1973a, SRS Dosimetry Quarterly Report for 

Period Ending September 1973, Savannah River Site, Aiken, South Carolina, October 26. 

[SRDB Ref ID: 50202] 

DuPont (E. I. du Pont de Nemours and Company), 1973b, SRS Dosimetry Quarterly Report for 

Period Ending March 1973, Savannah River Site, Aiken, South Carolina, May 2. [SRDB 

Ref ID: 50187] 

DuPont (E. I. du Pont de Nemours and Company), 1974, SRS Dosimetry Quarterly Report for 

Period Ending December 1974, Savannah River Site, Aiken, South Carolina, January 31, 

1975. [SRDB Ref ID: 50124] 

DuPont (E. I. du Pont de Nemours and Company), 1975a, SRS Dosimetry Quarterly Report for 

Period Ending December 1975, Savannah River Site, Aiken, South Carolina, January 29, 

1976. [SRDB Ref ID: 50179] 

DuPont (E. I. du Pont de Nemours and Company), 1975b, SRS Dosimetry Quarterly Report for 

Period Ending March 1975, Savannah River Site, Aiken, South Carolina, April 28, 1975. 

[SRDB Ref ID: 50207] 

DuPont (E. I. du Pont de Nemours and Company), 1975c, SRS Dosimetry Quarterly Report for 

Period Ending June 1975, Savannah River Site, Aiken, South Carolina, July 30, 1975. 

[SRDB Ref ID: 50193] 

DuPont (E. I. du Pont de Nemours and Company), 1976, SRS Dosimetry Quarterly Report for 

Period Ending June 1976, Savannah River Site, Aiken, South Carolina, July 29, 1976. 

[SRDB Ref ID: 50083] 

DuPont (E. I. du Pont de Nemours and Company), 1977a, SRS Dosimetry Quarterly Report for 

Period Ending June 1977, Savannah River Site, Aiken, South Carolina, July 28. [SRDB 

Ref ID: 50264] 

DuPont (E. I. du Pont de Nemours and Company), 1977b, SRS Dosimetry Quarterly Report for 

First Quarter 1977, Savannah River Site, Aiken, South Carolina, April 29. [SRDB Ref 

ID: 50267] 

DuPont (E. I. du Pont de Nemours and Company), 1977c, HP Department Codes April 1977 

Version, Savannah River Site, Aiken, South Carolina, April. [SRDB Ref ID: 158031] 

DuPont (E. I. du Pont de Nemours and Company), 1978, SRS Dosimetry Quarterly Report for 

Period Ending December 1978, Savannah River Site, Aiken, South Carolina, January 30, 

1979. [SRDB Ref ID: 50288] 
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 23 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

DuPont (E. I. du Pont de Nemours and Company), 1979a, SRS Dosimetry Quarterly Report for 

Period Ending March 1979, Savannah River Site, Aiken, South Carolina, April 27. 

[SRDB Ref ID: 50210]

DuPont (E. I. du Pont de Nemours and Company), 1979b, SRS Dosimetry Quarterly Report for 

Period Ending September 1979, Savannah River Site, Aiken, South Carolina, October 27. 

[SRDB Ref ID: 50216]

DuPont (E. I. du Pont de Nemours and Company), 1980a, SRS Dosimetry Quarterly Report for 

Period Ending June 1980, Savannah River Site, Aiken, South Carolina, August 4. 

[SRDB Ref ID: 50158]

DuPont (E. I. du Pont de Nemours and Company), 1980b, Dosimetry Quarterly Report for 

Period Ending December 1980, Savannah River Site, Aiken, South Carolina, January 28. 

[SRDB Ref ID: 50175]

DuPont (E. I. du Pont de Nemours and Company), 1981a, Dosimetry Quarterly Report for 

Second Quarter 1981, Savannah River Site, Aiken, South Carolina, August 3. [SRDB 

Ref ID: 50437]

DuPont (E. I. du Pont de Nemours and Company), 1981b, Dosimetry Quarterly Report for First 

Quarter 1981, Savannah River Site, Aiken, South Carolina, May 5. [SRDB Ref ID: 

50438]

DuPont (E. I. du Pont de Nemours and Company), 1981c, SRS Dosimetry Quarterly Report for 

Fourth Quarter 1981, Savannah River Site, Aiken, South Carolina, February 1. [SRDB 

Ref ID: 50432]

DuPont (E. I. du Pont de Nemours and Company), 1981d, Dosimetry Quarterly Report for Third 

Quarter 1981, Savannah River Site, Aiken, South Carolina, October 27. [SRDB Ref ID: 

50436]

DuPont (E. I. du Pont de Nemours and Company), 1982a, SRS Dosimetry Quarterly Report for 

First Quarter 1982, Savannah River Site, Aiken, South Carolina, April 29. [SRDB Ref 

ID: 50462]

DuPont (E. I. du Pont de Nemours and Company), 1982b, SRS Dosimetry Quarterly Report for 

Third Quarter 1982, Savannah River Site, Aiken, South Carolina, October 29. [SRDB 

Ref ID: 50456]

DuPont (E. I. du Pont de Nemours and Company), 1982c, SRS Dosimetry Quarterly Report for 

Second Quarter 1982, Savannah River Site, Aiken, South Carolina, July 28. [SRDB Ref 

ID: 50461]
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 24 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

DuPont (E. I. du Pont de Nemours and Company), 1983a, SRS Dosimetry Quarterly Report for 

First Quarter 1983, Savannah River Site, Aiken, South Carolina, April 29. [SRDB Ref 

ID: 50448]

DuPont (E. I. du Pont de Nemours and Company), 1983b, SRS Dosimetry Quarterly Report for 

Third Quarter 1983, Savannah River Site, Aiken, South Carolina, October 14. [SRDB 

Ref ID: 50463]

DuPont (E. I. du Pont de Nemours and Company), 1984a, SRS Dosimetry Quarterly Report for 

Fourth Quarter 1983, Savannah River Site, Aiken, South Carolina, January 23. [SRDB 

Ref ID: 50470]

DuPont (E. I. du Pont de Nemours and Company), 1984b, SRS Dosimetry Quarterly Report for 

Second Quarter 1984, Savannah River Site, Aiken, South Carolina, July 23. [SRDB Ref 

ID: 50483]

DuPont (E. I. du Pont de Nemours and Company), 1986, SRS Dosimetry Quarterly Report for 

Fourth Quarter 1985, Savannah River Site, Aiken, South Carolina, January 22. [SRDB 

Ref ID: 50551]

DuPont (E. I. du Pont de Nemours and Company), 1988a, SRS Dosimetry Quarterly Report for 

Second Quarter 1988, Savannah River Site, Aiken, South Carolina, July 26. [SRDB Ref 

ID: 50525]

DuPont (E. I. du Pont de Nemours and Company), 1988b, SRS Dosimetry Quarterly Report for 

Third Quarter 1988, Savannah River Site, Aiken, South Carolina, October 27. [SRDB 

Ref ID: 50530]

DuPont (E. I. du Pont de Nemours and Company), 1988c, SRS Dosimetry Quarterly Report for 

Third Quarter 1988, Savannah River Site, Aiken, South Carolina, July 26. [SRDB Ref 

ID: 50525]

DuPont (E. I. du Pont de Nemours and Company), 1989, SRS Dosimetry Quarterly Report for 

Fourth Quarter 1988, Savannah River Site, Aiken, South Carolina, January 20. [SRDB 

Ref ID: 50532]

DuPont (E. I. du Pont de Nemours and Company), unknown, SRS HPA and Department 

Designations from 959 to 2004 and Forward Spreadsheet 2, Savannah River Site, Aiken, 

South Carolina [SRDB Ref ID 154268]

ORAUT (Oak Ridge Associated Universities Team), 2013, “Documented Communication with 

[Name Redacted] on Savannah River Site, August 26, 2013,” documented 

communication, Oak Ridge, Tennessee, August 26. [SRDB Ref ID: 128787]
Response Paper NIOSH Responses to SC&A Findings on ORAUT-RPRT0077 

January 30, 2018

Page 25 of 25

This is a working document prepared by NIOSH’s Division of Compensation Analysis and Support (DCAS) or its contractor for use in 

discussions with the ABRWH or its Working Groups or Subcommittees. Draft, preliminary, interim, and White Paper documents are not final 

NIOSH or ABRWH (or their technical support and review contractors) positions unless specifically marked as such. This document represents 

preliminary positions taken on technical issues prepared by NIOSH or its contractor. NOTICE: This document has been reviewed to identify and 

redact any information that is protected by the Privacy Act 5 USC §552a and has been cleared for distribution.

SC&A (SC&A, Inc.), 2017, SC&A Review of Dosimetry Coding Methods for Identifying 

Neptunium Workers at Savannah River Site, SC&A in SCA-TR-2017-SEC006, Revision 

0, Arlington, VA, April 2017, https://www.cdc.gov/niosh/ocas/pdfs/abrwh/scarpts/scasrsrprt77-r0.pdf